Mohsin Naqvi, Pakistan's Interior Minister, flew to Tehran on Monday 18 May for a two-day visit, Al Jazeera reported 1. He met President Masoud Pezeshkian, Majlis Speaker Mohammad Bagher Ghalibaf, and Interior Minister Eskandar Momeni. Pakistani sources described the trip as scrambling to prevent ceasefire negotiations from collapsing. Iran transmitted a response to the latest US proposal via Islamabad during the visit. On 20 May, foreign ministry spokesman Esmaeil Baghaei confirmed the channel had relayed 'corrective points' .
Pakistan has been the sole functioning US-Iran diplomatic relay since the war began on 28 February, after JD Vance's planned Islamabad round was postponed in late April. Naqvi's visit is the third documented exchange in this sub-cycle, following Iran's 10 May 10-point counter-MOU and Trump's 'totally unacceptable' rejection on 11 May. Pakistani mediation since the war began has been relay rather than settlement-style mediation: Army Chief Asim Munir delivered the April four-country monitoring framework; Naqvi has now delivered May's corrective points. The relay function survives without a shared text because relay requires only trust in the courier.
The US position on the table remains: dismantle the nuclear programme, lift the Hormuz blockade, retain only one nuclear site, transfer HEU (Highly Enriched Uranium) abroad. Iran's position: release frozen assets, lift sanctions, pay war-damage compensation, end the US port blockade. Three exchanges have crossed the Pakistani relay this sub-cycle without either side working from the same document, leaving the gap as a textual one rather than a positional one.
The visit happened against a backdrop of zero Iran-touching presidential actions across 18-21 May despite two Truth Social threats from Donald Trump demanding Iran dismantle its missile arsenal and end enrichment, conditions beyond any text routed through Islamabad. The verbal architecture has held internally for 82 days; what it has not produced is a single piece of paper either capital could countersign. Naqvi moved the architecture one exchange forward without producing one.
